Andrew Morton <[EMAIL PROTECTED]> writes: > On Wed, 21 Feb 2007 14:31:41 -0500 > Chuck Ebbert <[EMAIL PROTECTED]> wrote: >> What is the status of: >> >> > http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20/2.6.20-mm2/broken-out/x86_64-mm-simplfy-__assign_irq_vector.patch >> > http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20/2.6.20-mm2/broken-out/x86_64-mm-handle-irqs-pending-in-irr-during-irq-migration.patch > > That's mainly an Andi decision. Let's cc him. > >> They fix a serious bug that causes machines to freeze up >> or just run very slowly. >> >> I'd like to see these in -stable if possible. > > They're not even in mainline yet.
If you don't have it you at least want the patch below. It generally makes the bug non-fatal. I'm still working my way through possible fixes... Although the patch in question is close, and normally fixes it in my utmost paranoia I can still find problems with it. Eric commit 2fb12a9bca5ad9aa6dcd2c639b4a7656a8843ef8 Author: Eric W. Biederman <[EMAIL PROTECTED]> Date: Tue Feb 13 13:26:25 2007 +0100 [PATCH] x86-64: survive having no irq mapping for a vector Occasionally the kernel has bugs that result in no irq being found for a given cpu vector. If we acknowledge the irq the system has a good chance of continuing even though we dropped an irq message. If we continue to simply print a message and not acknowledge the irq the system is likely to become non-responsive shortly there after. AK: Fixed compilation for UP kernels Signed-off-by: Eric W. Biederman <[EMAIL PROTECTED]> Signed-off-by: Andi Kleen <[EMAIL PROTECTED]> Cc: "Luigi Genoni" <[EMAIL PROTECTED]> Cc: Andi Kleen <[EMAIL PROTECTED]> Signed-off-by: Andrew Morton <[EMAIL PROTECTED]> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/